r173132 - in /trunk/gcc: ChangeLog testsuite/Ch...

[irar at gcc dot gnu dot org]

Author: irar
Date: Thu Apr 28 19:50:28 2011
New Revision: 173132

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=173132
Log:

        PR tree-optimization/48765
        * tree-vectorizer.h (vect_make_slp_decision): Return bool.
        * tree-vect-loop.c (vect_analyze_loop_operations): Add new
        argument to indicate if loop aware SLP is being used.  Scan
        the statements and update the vectorization factor
        according to the type of
        vectorization before statement analysis.
        (vect_analyze_loop_2): Get a return value from
        vect_make_slp_decision, pass it to 
        vect_analyze_loop_operations.
        (vectorizable_reduction): Set number of copies to 1 in case of
        pure SLP statement.
        * tree-vect-stmts.c (vectorizable_conversion,
        vectorizable_assignment, vectorizable_shift,
        vectorizable_operation, vectorizable_type_demotion,
        vectorizable_type_promotion, vectorizable_store,
        vectorizable_load): Likewise.
        (vectorizable_condition): Move the check that it is not SLP
        vectorization before the number of copies check.
        * tree-vect-slp.c (vect_make_slp_decision): Return TRUE if
        decided to vectorize the loop using SLP.


Added:
    trunk/gcc/testsuite/gcc.dg/vect/pr48765.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree-vect-loop.c
    trunk/gcc/tree-vect-slp.c
    trunk/gcc/tree-vect-stmts.c
    trunk/gcc/tree-vectorizer.h